failed update ppm from 9100 - 9121

failed update ppm from 9100 - 9121

Hi

I urgently need some help in getting my SDP FIXED. i tried to update to 9121 - i did a full back up before hand but i dont see anything on the full back up folder just a file list and some screenshots zip files

how do i revert back to the previous version?

                  New to ADSelfService Plus?